About downgrade thingy not allowed, its not very logical. I cannot downgrade to pr339 from pr280 no matter what i try. i upgraded to 1.3 from nokia software update (i had a flashed pr001 on 1.2) and after NSU was done i had 280 again. Its no big deal really but i cannot choose to lock it in 2g since pr280 has that option dimmed out. Going to try a external 2g/3g/dual switcher to se if that helps tho. But as i said, downgrading rules are not as simple as you think. (i have soon downloaded most of new navifirm (new backup links) and tried flashing most of them. I all accompliced tho is making a monthly record in legal GB downloads :P )